In a future Japan divided into several small nations after the collapse of civilization, this is a rise-to-power harem story depicting battles and adventures woven between the protagonist who has obtained the strongest level of power and several girls. The protagonist, who has time-slipped into a post-civilization-collapse future where special powers have become commonplace, takes up work as an "excavator," uncovering modern machine parts, products, metals and other items said to be relics from the mythological age based on memories and knowledge from that era. Furthermore, the protagonist encounters a beautiful girl in that land. This girl is the grown-up version of the neighbor's only daughter who was caught up in the time transfer before it happened—a young girl who adored him saying "I love you, big brother." That neighbor has become a Grand Duke ruling that land. ※Book version Volume 1 released on December 25, 2015. Book version Volume 2 released on February 25, 2016. Book version Volume 3 released on November 10, 2016.
| Word | Frequency | Difficulty |
|---|---|---|
| 発想 | 3 | 3.73 |
| 扱い方 | 3 | 4.50 |
| うだうだ | 3 | 4.97 |
| 向かい合う | 3 | 3.83 |
| 正しい | 3 | 3.12 |
| 笑い声 | 3 | 3.54 |
| 心中 | 3 | 4.01 |
| 補足 | 3 | 3.96 |
| 正月 | 3 | 4.52 |
| 告白 | 3 | 3.52 |
| 迷惑をかける | 3 | 4.47 |
| 事務所 | 3 | 4.13 |
| 共にする | 3 | 4.31 |
| お腹 | 3 | 3.37 |
| 詰め寄る | 3 | 3.85 |
| 組織 | 3 | 3.25 |
| 一時 | 3 | 3.70 |
| 摂る | 3 | 4.03 |
| 甲高い | 3 | 3.95 |
| 抱きかかえる | 3 | 4.72 |
| とっても | 3 | 3.57 |
| 向き | 3 | 3.61 |
| 損 | 3 | 3.84 |
| 微笑 | 3 | 3.73 |
| ロマン | 3 | 4.13 |
| づつ | 3 | 4.68 |
| 首謀者 | 3 | 4.35 |
| 吭 | 3 | 3.81 |
| 深 | 3 | 3.89 |
| 実をいうと | 3 | 5.50 |
| ご覧 | 3 | 3.89 |
| 進展 | 3 | 4.18 |
| 見当 | 3 | 4.13 |
| 絶対君主制 | 3 | 5.98 |
| 口ぶり | 3 | 4.18 |
| 乱れ | 3 | 3.89 |
| 前日 | 3 | 4.05 |
| 容赦 | 3 | 3.63 |
| タオル | 3 | 3.85 |
| 幼芽 | 3 | 3.74 |
| 指摘 | 3 | 3.38 |
| 確証 | 3 | 4.10 |
| ぐちゃぐちゃ | 3 | 4.35 |
| 高揚 | 3 | 4.22 |
| 切っ先 | 3 | 3.89 |
| 波 | 3 | 3.25 |
| 想像に難くない | 3 | 4.48 |
| 利用価値 | 3 | 4.53 |
| 小柄 | 3 | 3.65 |
| 拝送 | 3 | 4.75 |
| ポイ | 3 | 4.40 |
| 差しだす | 3 | 5.07 |
| 計 | 3 | 4.12 |
| 駆け出す | 3 | 3.78 |
| 提げ | 3 | 4.72 |
| 不機嫌 | 3 | 3.55 |
| 眩しい | 3 | 3.69 |
| 公の場 | 3 | 4.56 |
| 並走 | 3 | 4.59 |
| 日当 | 3 | 5.18 |
| 乞う | 3 | 4.46 |
| ホヤ | 3 | 5.58 |
| 身動き | 3 | 3.87 |
| 吐露 | 3 | 4.56 |
| 間隔 | 3 | 4.13 |
| 糧 | 3 | 4.13 |
| 萌え | 3 | 4.33 |
| ザクザク | 3 | 5.13 |
| り | 3 | 3.59 |
| 横たわる | 3 | 3.82 |
| スパイス | 3 | 4.43 |
| 細長い | 3 | 4.13 |
| 否応なく | 3 | 4.69 |
| 整える | 3 | 3.55 |
| 十七 | 3 | 4.20 |
| 等分 | 3 | 4.78 |
| 散々 | 3 | 3.63 |
| 密林 | 3 | 4.53 |
| 村 | 3 | 2.56 |
| ハンドバッグ | 3 | 5.85 |
| 年上 | 3 | 3.70 |
| 画期的 | 3 | 4.69 |
| 押して | 3 | 3.73 |
| 刑罰 | 3 | 4.82 |
| 突入 | 3 | 3.63 |
| 手順 | 3 | 3.94 |
| 断じて | 3 | 4.14 |
| 逃げだす | 3 | 4.59 |
| 配膳 | 3 | 4.54 |
| 貝 | 3 | 4.21 |
| 鮮明 | 3 | 4.18 |
| 打診 | 3 | 4.29 |
| 溶岩 | 3 | 4.13 |
| おける | 3 | 3.97 |
| 高品質 | 3 | 4.61 |
| 気にしないで | 3 | 3.81 |
| 割く | 3 | 3.98 |
| 合間 | 3 | 3.95 |
| 数日間 | 3 | 4.38 |
| 見渡し | 3 | 3.86 |
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